Paço do Lumiar pollen forecast - today, tomorrow and the week ahead
Pollen Today
Today (20 September) pollen in Paço do Lumiar is low; cypress is low.
Pollen Tomorrow
Tomorrow (21 September 2026) cypress increasing.
7-Day Trend
Over the next week cypress will decrease; grass and willow will remain stable.
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Pollen Risk
Today - 20 September
| Pollen species | Level | Value |
|---|---|---|
| Alder (Alnus) | None | 0/100 |
| Birch (Betula) | None | 0/100 |
| Hazel (Corylus) | None | 0/100 |
| Cypress (Cupressaceae) | Low | 25/100 |
| Grass (Poaceae) | None | 0/100 |
| Willow (Salicaceae) | None | 0/100 |
Tomorrow - 21 September
| Pollen species | Level | Value | 7-Day Trend |
|---|---|---|---|
| Alder (Alnus) | None | 0/100 | — |
| Birch (Betula) | None | 0/100 | — |
| Hazel (Corylus) | None | 0/100 | — |
| Cypress (Cupressaceae) | Moderate | 26/100 | |
| Grass (Poaceae) | None | 0/100 | |
| Willow (Salicaceae) | None | 0/100 |
Local Environmental Conditions
Paço do Lumiar occupies Santa Catarina Island's northeastern neighbour, São Luís island in Maranhão, where native Atlantic Forest remnants, restinga coastal scrub, and mangrove vegetation are the main pollen sources on this coastal island setting. The wet season from December to June provides the most frequent rainfall interruptions, while the dry season concentrates pollen dispersal and the coastal island position means trade winds frequently disperse pollen throughout.
In Paço do Lumiar, restinga coastal scrub and mangrove vegetation pollen disperses continuously through the year with no distinct seasonal boundary, though the wet season from December to June regularly interrupts counts with frequent rainfall.
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Frequently Asked Questions About Pollen in Maranhão
Is pollen high in Paço do Lumiar right now?
On 20 September 2026, overall pollen levels in Paço do Lumiar are low. Cypress is the main contributor to airborne pollen
Will pollen levels change in Paço do Lumiar tomorrow?
On 21 September 2026, pollen conditions in Paço do Lumiar will be different from today, with cypress increasing
Is pollen expected to decrease in Paço do Lumiar this week?
According to the five-day outlook, cypress pollen levels are expected to gradually decrease, suggesting improving conditions later in the week.
Which pollen types are currently active in Paço do Lumiar?
On 20 September 2026, Cypress is the dominant pollen source in Paço do Lumiar. grass and willow are not currently active.
When is pollen season in Paço do Lumiar?
How often is the Paço do Lumiar pollen forecast updated?
The Paço do Lumiar pollen forecast is updated four times daily. See the timestamp below for the most recent update.
Does pollen in Paço do Lumiar come from nearby or far away?
Studies show that most pollen exposure (often 70–90%) comes from nearby sources, such as local trees and vegetation. A good pollen forecast therefore depends on accurately representing local vegetation. Pollen can travel long distances, but this usually matters only early in the season or during specific wind events.
Are pollen levels in Paço do Lumiar based on measurements or forecasts?
Pollen data is often misunderstood. Most "pollen levels" are not real-time measurements, but forecasts.
Direct pollen measurements are typically delayed by 1-2 days because they require manual analysis. To show current conditions in Paço do Lumiar, modern forecasts combine recent measurements, weather data, and information about local vegetation.
This allows us to estimate pollen levels for today and the coming days, not just report the past.
Airmine’s atmospheric monitoring platform was developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team, using satellite and Earth observation technologies to improve emissions monitoring.
Understanding the Scale
The 0–100 scores represent risk levels, not direct measurements of pollen or air pollutant concentrations. Higher scores indicate higher risk. Pollen and air quality use different thresholds.
Pollen
| None | 0 | No or negligible risk of exposure. Pollen/mold exposure is expected to be minimal. |
| Low | 0-25 | Low risk of exposure. Small amounts of pollen or mold spores may be present. |
| Moderate | 25-50 | Moderate risk of exposure. Pollen/mold exposure is expected to be noticeable. |
| High | 50-75 | High risk of exposure. Elevated pollen/mold exposure is expected. |
| Very High | 75-100 | Very high risk of exposure. Pollen/mold exposure is expected to be at or near its highest levels. |
Get More in the Airmine Pollen app
Get 15-day pollen forecasts with morning, afternoon and evening detail, plus 5-day air quality forecasts. Explore interactive pollen risk maps, estimated pollen season start, route profiles and a symptoms diary.
Features and forecast availability vary by region. Currently covering Europe, the contiguous US, southern Canada, South Africa, Australia, Indonesia (Java & Bali), Brazil, Paraguay, Uruguay and the Buenos Aires area.
Developed with support from the European Space Agency (ESA) Business Applications and Space Solutions (BASS).
